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2 years ago

Hi i really need help with this it is due tonight

Mathematics

1 answer:

damaskus [11]2 years ago

4 0

Answer:

$1)\text{ Friday}\\2)\text{ }7:00\\3a)\text{ }0\\3b)\text{ }4\\3c)\text{ }0\\4a)\text{ }6\\4b)\text{ }4\\4c)\text{ }2$

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Please do all problems with work on paper thank you

damaskus [11]

a. $\frac{11}{12}$

b. $\frac{39}{20}$

c. $\frac{20}{21}$

Step-by-step explanation:

Step 1; First, we convert the given fractions into improper ones. To do this, we multiply the whole number with the denominator of the fraction and add with it the same fraction's numerator whereas the denominator remains unchanged. To convert the fraction

3 $\frac{1}{4}$ = (3 × 4) + 1 / 4 = $\frac{13}{4}$ ,

2 $\frac{1}{3}$ = (2 × 3) + 1 / 3 = $\frac{7}{3}$ ,

6 $\frac{1}{5}$ = (6 × 5) + 1 / 5 = $\frac{31}{5}$ ,

4 $\frac{1}{4}$ = (4 × 4) + 1 / 4 = $\frac{17}{4}$ ,

5 $\frac{2}{7}$ = (5 × 7) + 2 / 7 = $\frac{37}{7}$ ,

4 $\frac{1}{3}$ = (4 × 3) + 1 / 3 = $\frac{13}{3}$ .

Step 2; Now we subtract, using LCM to arrive at the answer

3 $\frac{1}{4}$ - 2 $\frac{1}{3}$ = $\frac{13}{4}$ - $\frac{7}{3}$ = $\frac{39-28}{12}$ = $\frac{11}{12}$ ,

6 $\frac{1}{5}$ - 4 $\frac{1}{4}$ = $\frac{31}{5}$ - $\frac{17}{4}$ = $\frac{124-85}{20}$ = $\frac{39}{20}$ ,

5 $\frac{2}{7}$ - 4 $\frac{1}{3}$ = $\frac{37}{7}$ - $\frac{13}{3}$ = $\frac{111-91}{21}$ = $\frac{20}{21}$ .

7 0

3 years ago

What are the rules to remember when dividing fractions?

harkovskaia [24]

Answer:

copy the first fraction, turn the division sign to a multiplication sign and flip the second fraction

Step-by-step explanation:

ex: 2/5 divided by 1/4

turn it to- 2/5 x 4/1

5 0

4 years ago

Read 2 more answers

Help show work pls for brisnly

Deffense [45]

Answer:

Step-by-step explanation:

Ok, so all we have to do is multiply 8 * 3/4, because each child needs 3/4 of the sandwich, and there are 8 of them. The easiest (My opinion) way to do this is by turning 8 into a fraction. Turning whole numbers into fractions is really simple, just slap a /1 under them to make them a fraction. And so, our fraction is 8/1. Now, all we have to do is multiply the top part of the fraction, and then the bottom part of the fraction. So, 8 * 3 = 24, and 1 * 4 = 4. So, just put 24/4 as an answer. But, wait! We have to simplify it! 24 divided by 4 is 6, so 6 is our final answer.

8 0

3 years ago

Kelly rolls two number cubes 50 times. After each roll, she records whether the number on

xeze [42]

Answer:

480

Step-by-step explanation:

First add the numbers in the table together and put the total as a denominator in a fraction then the amount of times 2 odd numbers appeared as the numerator then put another fraction with 2,000 as the denominator and divide 2,000 by the total then multiply the numerator by that answer to get the correct answer.

Hope this helped!

5 0

3 years ago

Y = 4/2 x - 4 y intercept and the slope

Komok [63]

Answer:

y intercept is (0,-4) slope is 4/2

Step-by-step explanation:

If you plug 0 into x you get the y-intercept, because to for a y-intercept x=0.

The slope is the number attached to the x.

5 0

4 years ago